Facebook shut down API access for a data-mining firm named Crimson Hexagon last month after the Wall Street Journal reported that it was working with the US government and a nonprofit tied to the Kremlin, in violation of its policies. But it's back on the platform now, reports Alex Pasternack:

The reinstatement, which began earlier this month, followed “several weeks of constructive discussion and information exchange,” said Dan Shore, Crimson’s chief financial officer. But the companies didn’t specify the results of the inquiry or explain why access was restored, raising more questions about how Facebook and other platforms police third parties like Cambridge Analytica and Crimson Hexagon.